5 Litre Beer Kegs Home Brew

Where are the 10 cents of John? I

John, an economics student, is heading up one morning to buy bread as usual and finds two friends can not see for months, so they decide to go to have something to celebrate and chat. His friends were drinking coffee and he takes a drink.

After talking for over an hour and a half Juan tells the waiter to pay, to which his two friends contend that it is not fair that he pay everything and finally agree to pay each his own. The waiter tells them they are 3 €, as the coffee and soft drinks cost the same, 1 €.

So each one gets € 1 from his pocket and handed the waiter the 3 €. When the waiter goes to the bank to be the owner of the bar said that one of them is your friend and not being charged the 3 € 2.50 € but only so the waiter back to where our players were with the 50 cents of return.

quatity As was impossible to divide the waiter decided to stick with 20 cents and they split the other 30 cents (10 for each). The three friends collected their respective back and leave the bar, say goodbye at the door and everyone goes home.

On the way home John stops and remains thoughtful ... If we paid a euro and have returned 10 cents, each of us has been 90 cents ... in total is € 2.70 plus 20 cents that the waiter has been added € 2.90.

So ...

Where are the other 10 cents?

If you think you have the answer, leave your comment .. .